The No. 1 factor for Millennials and Boomers in determining which screen to use for an activity is its size, reports Millward Brown Digital. But, according to the new survey, for Gen Xers, it is speed and performance.

Japanese schoolgirls ages 10-18 spend seven hours a day on their mobile devices, according to security firm Digital Arts. It’s four hours for male counterparts.

A separate study by the University of Basel said that teenagers who used digital media at night had an increased risk for poor sleep and depressive symptoms.

Every hour, 148,400 smartphones are sold around the world, according to CTIA. For those challenged with math, that’s 41 smartphones moved every second.

There was a 15% increase in sales via tablets during recent East Coast snowstorm, per IBM.

This year, Groupon reportedly will launch a targeted deals product powered by beacons.

CBS forecasts 2016 Super Bowl ads to cost more than $5 million. No word on whether mobile will make the big game in any meaningful way.